Service bulletins for the 2005 Audi S4
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
213 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| 37 14 31 2013002 | 2022-05-02. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:SEALS/GASKETS. As the sump pan gasket settles, the torque of the bolts decreases and the seal may leak. Automatic transmission fluid is leaking at the sump pan gasket. |
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| 37 14 30 2003658 | 2022-05-02. Service bulletin. ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE:SOFTWARE; POWER TRAIN. This condition may be caused when the brake pedal and the accelerator pedal are depressed simultaneously. Drivers who drive with their left foot resting on the brake pedal are prone to experience this condition. With the introduction of Electronic Power Control (EPC) (no accelerator cable) to fuel injection systems, an engine RPM control feature has been incorporated into the engine electronic control system software. Customer states that the engine returns to idle speed of approximately 1,400 RPM although the accelerator is depressed, and/or the vehicle hesitates (lacks power on take-off). |
| 37 13 07 2033658 | 2022-05-02. Service bulletin. SERVICE BRAKES. This condition may be caused when the brake pedal and the accelerator pedal are depressed simultaneously. Drivers who consciously or unconsciously drive with their left foot resting on the brake pedal are prone to experience this condition. With the introduction of Electronic Power Control (EPC) (no accelerator cable) to fuel injection systems, an engine RPM control feature has been incorporated into the engine electronic control system software. As a result, application of the brake and accelerator pedals at the same time (brake pedal with left foot and accelerator pedal with right foot) results in the following: ? Brake pedal function (normal at all times) overrides any throttle application. ? Diagnostic Trouble Codes (DTCs) will not be stored. ? When the brake pedal is applied while the accelerator is depressed, engine RPMs will return to idle speeds of 1400 RPMs after approximately two seconds. ? When the accelerator is applied while the brake pedal is depressed, the vehicle accelerates slower than usual (reduced engine torque). |
| TRMALEA_AL_Audi | 2022-04-05. Service bulletin. AIR BAGS. In conjunction with the Alabama Law Enforcement Agency (ALEA), Audi is sending Takata airbag recall reminder notices to approximately 939 Audi owners in the State of Alabama on March 23, 2022. |
| TRMDOTPA_Audi | 2022-02-04. Service bulletin. AIR BAGS. In conjunction with the Pennsylvania Department of Transportation, Audi is sending Takata airbag recall reminder notices to approximately 4,943 Audi owners in the state of Pennsylvania on January 24, 2022. |
| TRMDPSSC_Audi | 2022-02-04. Service bulletin. AIR BAGS. In conjunction with the South Carolina Department of Public Safety, Audi is sending Takata airbag recall reminder notices to approximately 1,290 Audi owners in the state of South Carolina on January 24, 2022. |
| TRMDMVID_Audi | 2021-09-03. Service bulletin. AIR BAGS. In conjunction with the Idaho DMV, Audi will be sending Takata airbag recall reminder notices to approximately 688 Audi owners in the State of Idaho on August 30, 2021. |
| A0021482021205_6 | 2021-07-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; STRUCTURE. This informational bulletin explains how to order replacement VIN plates, Safety Certification Labels, etc. |
| TRMDMVNY_Audi | 2021-07-02. Service bulletin. AIR BAGS. In conjunction with the New York DMV, Audi will be sending Takata airbag recall reminder notices to approximately 6,957 Audi owners in the State of New York on June 21, 2021. |
| TRMTXDMV_Audi | 2021-06-03. Service bulletin. AIR BAGS. In conjunction with the Texas DMV, Audi will be sending Takata airbag recall reminder notices to approximately 7,185 Audi owners in the State of Texas on May 17, 2021. |
| A5721752022032_9 | 2021-05-06. Service bulletin. LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM. This technical service bulletin provides troubleshooting information for the vehicle locking system. |
| SM C-2020 | 2021-01-08. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the part numbers listed (State of California only). |
| A0020362002047_1 | 2020-12-21. Service bulletin. EQUIPMENT:ELECTRICAL. This information bulletin contains instructions for technicans on how to ensure their TAC call goes smoothly. |
| A1720112060750_1 | 2020-11-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION; EQUIPMENT. This bulletin contains instructions for using the UV additive to find engine oil leaks. |
| 21AUTIRECHAINS | 2020-10-06. Service bulletin. TIRES; EQUIPMENT; WHEELS. Added new graphic to reflect where to find MY 21 information |
| Audi Part Labels | 2020-09-03. Service bulletin. EQUIPMENT. Recall Reminder Part Labels |
| TRMMIDOS_Audi | 2020-09-03. Service bulletin. AIR BAGS. In conjunction with the Michigan Department of State, Audi will be sending Takata airbag recall reminder notices to approximately 3,000 Audi owners in the State of Michigan on August 10, 2020. |
| TRMTX_Audi | 2020-08-06. Service bulletin. AIR BAGS. In conjunction with the County of Fort Bend, Audi will be sending Takata airbag recalll reminder notices to approximately 370 Audi owners in the State of Texas on July 28, 2020. |
| TRMTN_Audi | 2020-08-06. Service bulletin. AIR BAGS. In conjunction with the Tennessee DMV, Audi will be sending Takata airbag recall reminder notices to approximately 2,300 Audi owners in the State of Tennessee on July 7, 2020. |
| TRMMRFL_Audi | 2020-07-07. Service bulletin. AIR BAGS. In conjunction with the City of Miramar, Audi sent Takata airbag recall reminder notices to approximately 89 Audi owners in the State of Florida on June 26, 2020. |
| TRMLPCA_Audi | 2020-07-07. Service bulletin. AIR BAGS; EQUIPMENT. In conjunction with the City of La Puente, Audi will be sending Takata airbag recall reminder notices to approximately 45 Audi owners in the State of California on June 22, 2020. |
| A1920042025303_1 | 2020-07-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for identifying and mixing factory fill coolants. |
| A0020382039206_3 | 2020-07-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin contains instructions on how to use the QR code in a TSB. |
| A9120702044694_2 | 2020-06-04. Service bulletin. EQUIPMENT. This technical service bulletin provides troubleshooting for issues with the navigation map database. |
| TK Services_Audi | 2020-05-07. Service bulletin. EQUIPMENT. Effective immediately, TK Services Inc. will resume scheduling part pick-up from dealerships and service centers. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.